Study On The Leaching Rules Of Rural Living Solid Waste

There are following differences between urban and rural household garbage: 1.The differences in the composition of garbage components;2.The differences in garbage collection and trsportation 3.The differences in landfill modes,resulting in the landfill of villages and towns of the secondary pollution and the city is different,so in our urban living garbage treatment and disposal of secondary pollution and the rapid development of research under the premise of China's rural landfill leachate pollution characteristics.(1)Through the field pilot test,the variation law of pollutant concentration of leachate produced in the municipal solid waste landfill site was studied.Choose transit time of trash as a variable,by measuring the concentration of leachate generated by landfill to determine the appropriate village and town waste transit stay.It was found that the leachate CODCr and BOD5 accumulated leachate in landfill group pretreated by transit was significantly lower than that of landfill leachate codcr and BOD5 cumulative leaching,while TN,NH3-N and TP cumulative leaching The amount of landfill group is not different.The transfer of rural domestic waste for more than 15 days can effectively reduce the environmental risk of organic matter leachate pollution during the initial landfill.When the transit time reaches 30 days,the garbage collection and transportation costs are reduced,and the feasibility of effective treatment and management of rural garbage is improved.(2)Understand the differences between the pollution characteristics of leachate produced in rural and urban landfills.It is found that the concentrations of pollutants in municipal solid waste leachate in our country fluctuate at relatively large concentrations,all of which exceed the standard limits seriously.Many reactions of leachate degradation occurred in the first 5 years.After 5 years,the properties of leachate gradually becoming steady.Landfill leachate in rural areas of the pollution index values are much smaller than the city,accounting for about 1/10 or so,and poor biodegradability,suitable for the use of physical and chemical laws.(3)With reference to the physical composition of domestic garbage in typical villages and towns in our country,dispose rubbish and carry out simulation experiment indoors to study the effect of rural household garbage collection and transportation modes and landfill modes of rural life on leachate production and pollution components,The best way to dispose and dispose garbage It was found that the organic matter in the trash degraded rapidly in the first few weeks after landfilling.After 30 days,the concentration of each pollutant has been reduced.Therefore,transporting the trash to the refuse pond after being transported for 30 days will reduce the seepage generated by the landfill At the same time,as the degree of compaction of rubbish increases,the concentration of each pollutant will become larger and the degradation capacity will be reduced.Therefore,the landfill of village and town may not be compacted during landfill.